Answer / santosh_kawade

Difference between online UPS and OFFline UPS
(Uninterrupted power system):

1) Online UPS : In this system UPS is alway connected to
system. All equipment recieve power through UPS system. In
case of power failure it provide backup without any break
(no break system not even in milliseconds)

2) OFFline UPS : In this system UPS is not always connected
to system. As per design it only monitor healthiness of
power supply system and as soon as power goes OFF its
switch on automatically in few milli-seconds and provide
power back.

Nomrmally online UPS is preferable.

Santosh Kawade
9224 69 3116

Answer / sunil guru

>>>>>ON LINE UPS -- HAS MUCH MORE FEATURES THAN OFF LINE AND PRICE WISE ITS PRICE IS Much higher THAN OFFLINE

IN ONLINE UPS THERE IS NO CHANGE OVER TIME SO THE SENSITIVE EQUIPMENT LIKE PC DOES NOT REBOOT,OUTPUT IS PURE SINE WAVE,THERE ARE MANY PROTECTIONS FORM MAIN UTILITY IS PROVIDED BY UPS LIKE (SPIKES,RUGGEDNESS,TRANSIENTS,HARMONICS,OVER VOLTAGE,UNDER VOLTAGE,SHORT CIRCUIT)
WHICH ARE NOT MAINLY FOUND IN OFFLINE UPS.

IN ONLINE BATTERY IS ALWAYS IN OPERATION (AC-DC -BATTERY -DC -AC)

>>>>>IN OFFLINE THERE IS A CHANGE OVER OF FEW MILLI SECOND
ONLY FEW PROTECTIONS ARE PROVIDED
BATTERY IS NOT IN CONTINUOUS OPERATION (IT COMES IN PICTURE ONLY WHEN MAINS FAILS)

FOR ANY DISAGREEMENT CONTACT ME ON parmar20072008@yahoo.com

if 11 lead acid batteries each 200 amph are connected in series so that combinly they can produce 110 volts dc. question is how much backup it can provide ? 2) how can we calculate that how much amprere and voltage is required to charge them . thanks in advance !

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